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Re: Early Ceratopian
At 05:33 PM 10/14/98 -0500, you wrote:
>Does anyone have any information on the new ceratopian found here in the
States? I am referring to the one that is the earliest one known (the name
has slipped from memory). Any information would be valuable.
>Thanks in advance.
The dinosaur in question is NOT the earliest ceratopsian: _Psittacosaurus_
has that beaten out by tens of millions of years.
_Zuniceratops_ IS, however, the oldest known *horned* ceratopsian (or more
specifically, the oldest known brow-horned ceratopsian). It is from the
Turonian (early Late Cretaceous) age Moreno Hill Formation of New Mexico.
Here is the reference:
Wolfe, D.G. & J.I. Kirkland. 1998. _Zuniceratops christopheri_ n. gen. &
n. sp., a ceratopsian dinosaur from the Moreno Hill Formation (Cretaceous,
Turonian) of west-central New Mexico. pp. 303-317. IN Lucas, S.G.,
Kirkland, J.I. & Estep, J.W. (eds.), Lower and Middle Cretaceous Terrestrial
Ecosystems. New Mexico Museum of Natural History and Science Bulletin 14.
The Lower & Mid-K volume was just released at SVP, and the subsequent Lower
& Mid-K conference.
Hope this helps.
Thomas R. Holtz, Jr.
Vertebrate Paleontologist Webpage: http://www.geol.umd.edu
Dept. of Geology Email:firstname.lastname@example.org
University of Maryland Phone:301-405-4084
College Park, MD 20742 Fax: 301-314-9661